US3078592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating moving lengths of material
Assignee: Spooner Dryer and Engineering Co
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Filing: 1959-08-25
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Granted: 1963-02-26
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Expires: 1979-08-25
Abstract
No abstract record available.
Inventors
- 👤 Coar Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:07
CPC Classifications
D; D21; D21G; D21G9/00; D21G9/009; D21F; D21F5/00; D21F5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN MATERIAL TREATMENT APPARATUS INCLUDING A ROTATABLE MATERIAL TREATMENT CYLINDER ABOUT WHICH IS PASSED A LENGTH OF MATERIAL TO BE TREATED: A TREATMENT HOOD DISPOSED ABOUT SAID CYLINDER AND HAVING AN OUTER PERIPHERAL WALL AND SIDE WALLS EXTENDING FROM THE OUTER PERIPHERAL WALL TO ADJACENT THE ENDS OF THE CYLINDER; A PLURALITY OF PARTITIONS IN SAID HOOD EACH EXTENDING TRANSVERSELY OF THE DIRECTION OF MATERIAL TRAVEL, SAID PARTITIONS DIVIDING THE INTERIOR OF THE HOOD INTO A SUCCESSION OF ALTERNATELY ARRANGED CIRCUMFERENTIALLY SPACED PRESSURE CHAMBERS AND EXHAUST CHAMBERS; AN ARCUATE FACING SECURED TO THE PAIR OF PARTITIONS AT OPPOSITE SIDES OF EACH PRESSURE CHAMBER IN THE SUCCESSION, SAID FACINGS FACING THE CYLINDER AND HAVING A PLURALITY OF APERTURES FOR THE DISCHARGE OF HIGH VELOCITY STREAMS OF GASEOUS MEDIUM TOWARDS THE CYLINDER FROM THE
Claim 2
Dependent Claim
132 words
IN MATERIAL TREATMENT APPARATUS INCLUDING A ROTATABLE MATERIAL TREATMENT CYLINDER ABOUT WHICH IS PASSED A LENGTH OF MATERIAL TO BE TREATED: A TREATMENT HOOD DISPOSED ABOUT SAID CYLINDER AND HAVING AN OUTER PERIPHERAL WALL AND SIDE WALLS EXTENDING FROM THE OUTER PERIPHERAL WALL TO ADJACENT THE ENDS OF THE CYLINDER; A PLURALITY OF PARTITIONS IN SAID HOOD EACH EXTENDING TRANSVERSELY OF THE DIRECTION OF MATERIAL TRAVEL, SAID PARTITIONS DIVIDING THE INTERIOR OF THE HOOD INTO A SUCCESSION OF ALTERNATELY ARRANGED CIRCUMFERENTIALLY SPACED PRESSURE CHAMBERS AND EXHAUST CHAMBERS; AN ARCUATE FACING SECURED TO THE PAIR OF PARTITIONS AT OPPOSITE SIDES OF EACH PRESSURE CHAMBER IN THE SUCCESSION, SAID FACINGS FACING THE CYLINDER AND HAVING A PLURALITY OF APERTURES FOR THE DISCHARGE OF HIGH VELOCITY STREAMS OF GASEOUS MEDIUM TOWARDS THE CYLINDER FROM THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |